00525nam a2200181Ia 4500 170901s1978 xx 000 0 und d 047110227x 635.2 O50T Onwueme, I.C. The Tropical Tuber Crops Yams, Cassava, Sweet Potato, Cocoyams Chichester John Wiley and Sons 1978 234 Agriculture and related technologies Technology (Applied sciences) Tropics Tuber crops ddc BK 1 16444 16444 0 0 ddc 0 0 RAU RAU 2017-10-18 Presented by Britain 2.00 1 635.2 O50T 36927 2026-02-17 2026-02-13 1985-09-04 BK